SOLUTION: use a Right triangle, find missing length for a. a= b=10 c=15

Question 293358: use a Right triangle, find missing length for a.
a=
b=10
c=15
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Remember, the Pythagorean Theorem is where "a" and "b" are the legs of a triangle and "c" is the hypotenuse.

Start with the Pythagorean theorem.

Plug in and

Square to get .

Square to get .

Subtract from both sides.

Combine like terms.

Take the square root of both sides. Note: only the positive square root is considered (since a negative length doesn't make sense).

Simplify the square root.

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Answer:

So the solution is (which approximates to )

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